HTP package

Hi all,
maybe this is a naive question, maybe not for this forum, but please, can someone tell me where would I be able to find HTP package? Is it installed with the db server?
I use 9i database.
thanks in advance,
teo

thanks a lot ruhn..
ok I issue desc htp and it displays a list of functions. I think that means that it is installed doesn't it?
Just another quick question. Which is the most apropriate forum to ask a question about htp? I wan to know how would I be able to call a stored procedure from a browser's url in order to dynamically create a page with db data.
I think this is a common thing to do but I've never done it plus I don't know which is the right forum for the question.
Please if you can tell me where to ask or to show me a way into this.
Thanks for your time
regards,
teo

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Apex new installation - HTP package body has errors

I installed apex on 10G. When i try to access the apex page, i get the following errors in log:
[Sat Oct 28 08:39:25 2006] [error] [client 192.168.1.90] [ecid: 1162049964:156.153.112.151:9580:0:9,0] mod_plsql: /pls/apex/apex HTTP-404 ORA-04063: package body "SYS.HTP" has errors\nORA-06508: PL/SQL: could not find program unit being called: "SYS.HTP"\nORA-06512: at line 7\n
When i recompile HTP package body, i get errors:
SQL> alter package htp compile body;
Warning: Package Body altered with compilation errors.
SQL> sho errors
Errors for PACKAGE BODY HTP:
LINE/COL ERROR
14/11 PLS-00323: subprogram or cursor 'TITLE' is declared in a package
specification and must be defined in the package body
15/11 PLS-00323: subprogram or cursor 'HTITLE' is declared in a package
specification and must be defined in the package body
1691/7 PL/SQL: Statement ignored
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1712/7 PL/SQL: Statement ignored
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Please tell us your first name and update your forum profile with it to help us. Also, change your handle to something more reader-friendly. Thanks.
If your imported applications are set up to use some kind of SSO authenticaiton and you haven't provided for that in your environment then you'll need to change those applications' authentication scheme to something you can deal with.
Scott

HTP package question

I have a feeling I'm in the wrong place for this question but maybe someone can help.
I'm not so good with Oracle configuration and setup issues but I have created a package with a few procedures that output info using the HTP package. At my old place of employment we had a web server set up and we could use
http://ouraddress.com/packagename.procedurename?p_param1=123&p_param2=456
We have a web-based application server set up for Oracle Forms (eBusiness Suite) but I don't know if I'm able to do something like this or not. Where/what do I need to set up to use this type of functionality?
null

PL/SQL Web Development Tools: Oracle Database provides built-in tools and technologies that enable you to deploy PL/SQL applications over the Web. Thus, PL/SQL serves as an alternative to Web application frameworks such as CGI.
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You got to start from here:
Developing Applications with the PL/SQL Web Toolkit
http://download-east.oracle.com/docs/cd/B19306_01/appdev.102/b14251/adfns_web.htm#g1026380

Sending Binary Data using HTP package

Has anyone been successful in using the HTP package and its PUTRAW procedure to send binary data to a browser?
Example code shows basic idea:
create or replace
procedure test_raw as
output VARCHAR2(20);
begin
OWA_UTIL.MIME_HEADER('application/x-gzip', TRUE);
output := 'Hello World!';
HTP.PUTRAW(UTL_RAW.CAST_TO_RAW(output));
HTP.FLUSH;
end test_raw;
I receive an empty file when called from the browser.
What gives?

I found my answer. I should be using wpg_docload.download_file(BLOB) to "download" a the contents of a BLOB.

HTP Package and Oracle XE

Hello Experts,
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Please help me.
Thanks,
B Adhvaryu
London
UK

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PaulB

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Hi
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Oracle Application Express (APEX)
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How to incorporate Javscript into oralce htp packages?

hello,
I would like to know about the javascript how one can use in oracle HTP packages while creating the forms using HTP packages... are there any course offered by oracle or is there any documentation available on this? on i know the htp package are there but how one can use javascript in htp packages...
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Application Developer's Guide - Fundamentals Contents / Search / Index / PDF
Chapter 18 Page 679
http://download-east.oracle.com/docs/cd/B10501_01/appdev.920/a96590.pdf
You can enter too javacript code inside a Stored Procedure and use so:
Example:
<HTML>
<HEAD>
<TITLE>Metalink 2.0</TITLE>
</HEAD>
<FRAMESET COLS="152, *" NORESIZE BORDER="0" FRAMESPACE="0"
FRAMESPACING="0" FRAMEBORDER="NO">
<FRAME SRC="ml2_gui.checkJavascript?p_section_id=-1" SCROLLING="NO" SCROLLING="NO" MARGINWIDTH="0" MARGINHEIGHT="0" NAME="navbar">
<FRAMESET ROWS="61,*" BORDER="0" FRAMESPACE="0" FRAMESPACING="0" FRAMEBORDER="NO" NAME="rightframe">
<FRAME SRC="ml2_gui.queryform"SCROLLING="NO" NORESIZE MARGINWIDTH="0" MARGINHEIGHT=0 BORDER="0" NAME="query">
<FRAME SRC="per_hom.startup" SCROLLING="AUTO" NORESIZE MARGINWIDTH="0" MARGINHEIGHT="0" BORDER="0" NAME="corner">
</FRAMESET>
</FRAMESET>
Joel P�rez

Server side includes with htp package

I have a few procedures that call the htp package and generate dynamic web pages, however the server side includes are being treated as comments; they are not interpreted correctly and hence are not reading the associated file.
Has anyone encountered this before and found a solution?

I have a few procedures that call the htp package and generate dynamic web pages, however the server side includes are being treated as comments; they are not interpreted correctly and hence are not reading the associated file.
Has anyone encountered this before and found a solution?

HTP Package Help

Can someone help me on " how do I export the output of a pl/sql program into a notepad file through HTP Package."
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Oracle XE htp-package limitations?

Hello,
I'm developing a web application on my laptop Windows XP pro, Oracle XE 10 + apache + mod_owa. I had some serious issues with htp.p -calls, I'd keep getting this error message, no matter how small I made the htp.p -arguments
Error 6502 calling procedure:
ORA-06502: PL/SQL: numeric or value error: character string buffer too small
ORA-06512: at "SYS.HTP", line 1536
....I then started to wonder about this, and so I copied my packages to another machine (Windows server 2003, Oracle 10g, apache + mod_owa), compiled them and my error disappeared !
Now is this some sort of limitation in Oracle XE, or what?

Funny.. I'm sure that I submitted my response to this yesterday - but it does not show.
Anyway, here it is again. No, there is no limitation I'm aware of - having tested the code below in XE. I have a procedure called WebCall that simulates a mod_plsql call. I've used this to test:
SQL> create or replace type TStrings is table of varchar2(4000);
2 /
Type created.
SQL>
SQL> /
Type created.
SQL> create or replace procedure WebTest is
2          cookie OWA_COOKIE.cookie;
3 begin
4          OWA_UTIL.mime_header('text/html', TRUE );
5          cookie := OWA_COOKIE.get( 'SOME_CUSTOM_COOKIE' );
6
7          HTP.prn( 'What do you want, universe? (Klingon for "hello world")' );
8          HTP.prn( '<hr>' );
9          HTP.prn( rpad('0',3000,'1') );
10          HTP.prn( '<hr>' );
11
12          if cookie.vals.First is NULL then
13                  HTP.prn( 'Cookie [SOME_CUSTOM_COOKIE] is not set' );
14          else
15                  HTP.prn( 'Cookie [SOME_CUSTOM_COOKIE] is set to "'|| cookie.vals( cookie.vals.First )||'"' );
16          end if;
17
18          HTP.prn( '<hr>' );
19
20          HTP.prn( 'You are connection from web browser: '|| OWA_UTIL.get_cgi_env( 'HTTP_USER_AGENT' ) );
21 end;
22 /
Procedure created.
SQL>
SQL> create or replace function WebCall( procName varchar2, queryString varchar2 default null ) return TStrings pipelined is
2          nameList        OWA.vc_arr;
3          valueList       OWA.vc_arr;
4          htpBuffer       HTP.htbuf_arr;
5          bufRows         integer         := 99999999;
6          rc              integer;
7 begin
8          -- name-value list (typical CGI variables)
9          nameList(1) := 'HTTP_COOKIE';
10          nameList(2) := 'HTTP_HOST';
11          nameList(3) := 'HTTP_USER_AGENT';
12          nameList(4) := 'QUERY_STRING';
13          nameList(5) := 'REMOTE_ADDR';
14          nameList(6) := 'REQUEST_METHOD';
15          nameList(7) := 'QUEST_URI';
16
17          valueList(1) := 'SOME_CUSTOM_COOKIE=123; SOME_OTHER_COOKIE=foo';
18          valueList(2) := 'localhost';
19          valueList(3) := 'Mozilla/5.0; PL/SQL Interface';
20          valueList(4) := nvl( queryString, 'param1=value1&pama2=value3' );
21          valueList(5) := 'localhost';
22          valueList(6) := 'GET';
23          valueList(7) := '/custom-web-service';
24
25          -- initiliase OWA and configure a basic CGI environment
26          DBMS_SESSION.reset_package;                     -- reset PL/SQL PGA maintaining package state
27          rc := OWA.Initialize;
28          OWA.init_cgi_env( 7, nameList, valueList );
29          htp.HTBUF_LEN := 255;
30
31          -- now call the web enabled PL/SQL procedure
32          execute immediate 'begin '||procName||'; end;';
33
34          -- return the output as rows
35          OWA.get_page( htpBuffer, bufRows );
36          for i in 1..htpBuffer.Count
37          loop
38                  PIPE ROW( htpBuffer(i) );
39          end loop;
40
41          return;
42 end;
43 /
Function created.
SQL> show errors
No errors.
SQL>
SQL> col HTML_LINE format a80
SQL>
SQL> select
2          rownum          as LINE_NO,
3          b.column_value as HTML_LINE
4 from       TABLE( WebCall('WebTest') ) b
5 /
   LINE_NO HTML_LINE
         1 Content-type: text/html
         2 Content-length: 3176
         3
         4 What do you want, universe? (Klingon for "hello world")
         5 <hr>
         6 01111111111111111111111111111111111111111111111111111111111111111111111111111111
           11111111111111111111111111111111111111111111111111111111111111111111111111111111
           11111111111111111111111111111111111111111111111111111111111111111111111111111111
           111111111111111
..snipped..
        17 11111111111111111111111111111111111111111111111111111111111111111111111111111111
           11111111111111111111111111111111111111111111111111111111111111111111111111111111
           11111111111111111111111111111111111
        18 <hr>
        19 Cookie [SOME_CUSTOM_COOKIE] is set to "123"
        20 <hr>
        21 You are connection from web browser: Mozilla/5.0; PL/SQL Interface
21 rows selected.
SQL>The WebTest procedure writes a 3000 character string via HTP.PRN. It works fine.
As it accepts a varchar2 parameter, it should be capable of accepting 32KB strings. Note that the size is byte size and not char size. When using a db with a multibyte char set, a single char consumes more than 1 byte of space and then obviously less chars can be send in a 32KB block.
Also note that the limit for the SQL engine for varchar2 is 4000 bytes and not 32KB like the PL engine.
Playing around with the WebCall code, the only time I ran into string size errors, was when changing the HTBUF_LEN parameter to greater than 255. My guess this is a limitation of how the call interface between OWA and mod_plsql has been designed. But this does not limit the actual size of the HTP.PRN to 255 - only the way the data is exchanged (note that the pipeline function returns the data from the HTP buffer in 255 char chunks.

Search dbxml, owains, htp packages

I am searching to download these package :
owains.sql, htp*.sql
because i try to use The dbxml package who need the previous package. We work under
Oracle 8.0.4 release.
Thanks, DP

They are included in the .\xsql\demo\owa\owa_package.zip that come with the XSQL Servlet.

How to get full path using HTP.PRINT(' "input type ="file") ....

Hello everybody,
I am working on uploading file from page to another one using HTP package, but whenever I submit the form, it only takes the filename without the full path.
for example :
if i sent 'c:\dir\a.txt' , the other page receives file parameter as 'a.txt'
the code is here
PROCEDURE upload(appno in varchar2,wsct in varchar2) AS
l_real_name VARCHAR2(1000);
BEGIN
HTP.htmlopen;
HTP.headopen;
HTP.title('Test Upload');
HTP.headclose;
HTP.bodyopen;
HTP.header(1, 'Test Upload');
HTP.print('<form action="https://ssltrng.uaeu.ac.ae/trng/document_api.upload1" method="get">');
HTP.print(' File to upload: <input type="file" name="file" >
HTP.print(' <input type="submit" value="Upload">');
HTP.print('</form>');
HTP.bodyclose;
HTP.htmlclose;
END upload;
the other page see it as
file is 'Water lilies.jpg'
Thanks
Edited by: dtabed on Mar 30, 2011 1:02 AM

Do not understand the problem.
The code you've posted is a PL/SQL web enabled procedure that produces a dynamic HTML page. This page contains a form. And a full URL reference to the CGI that will process the form's data.
This is unusual - as it seems to be that the form is submitted across domains and web servers.. You usually refer to a local CGI procedure to deal with a form - no need for a fully qualified URL that includes web server and domain name.
If the CGI procedure that receives the form is also a PL/SQL web enabled procedure, that the uploaded file will be placed in the documents table (as defined in the DAD alias) by mod_plsql, prior to the web enabled procedure being called. The documents table will contain the Mime type, file name, file contents and other details.

Htp buffer error when using non-ascii characters

Hello, and my question:
When I issue the following command, 10000 times to print on web it works well:
htp.prn('<a>this is a test</a>');
But when I issue this command by just substituting "this is a test" with characters that their ASCII codes are between 128 to 255, I can not print more than 100 times and I get htp buffer error!
could you please solve this puzzle for me?
Thanks in advance and
Regards

You should try the DB forum for better help. This is really an HTP package issue.

Trouble calling htp in a web service procedure

I have a procedure that I was calling directly within an APEX application that allowed the user to download XML files, as follows:
PROCEDURE download_my_file (
p_resid IN VARCHAR2
, p_filename VARCHAR2
, p_filter_str IN VARCHAR2 DEFAULT NULL
AS
v_mime VARCHAR2 (48) := NULL;
v_length NUMBER;
v_file_name VARCHAR2 (2000);
v_clob CLOB;
v_buf VARCHAR2 (32000);
v_amt NUMBER := 4000;
v_pos NUMBER := 1;
BEGIN
IF p_filter_str IS NULL
THEN
SELECT EXTRACT (VALUE (r), '/*').getclobval ()
, DBMS_LOB.getlength (EXTRACT (VALUE (r), '/*').getclobval ())
INTO v_clob
, v_length
FROM TABLE (XMLSEQUENCE ((SELECT xdburitype (any_path).getxml ()
FROM resource_view
WHERE resid = p_resid))) r;
ELSE
v_clob:= repos_datasets.dyn_dset_licensed_location_xml(p_filter_str=>p_filter_str);
v_length:=DBMS_LOB.getlength (v_clob);
END IF;
-- set up HTTP header
-- if it is a null set it to application/octect
-- application/octect may launch a download window from windows
OWA_UTIL.mime_header ('text/xml', FALSE);
HTP.p ('Content-length: ' || v_length);
HTP.p ('Content-Disposition: attachment; filename="' || NVL(p_filename,'user_query.xml') || '"');
OWA_UTIL.http_header_close;
BEGIN
v_pos := 1;
LOOP
DBMS_LOB.READ (v_clob
, v_amt
, v_pos
, v_buf
v_pos := v_pos + v_amt;
HTP.prn (v_buf);
END LOOP;
EXCEPTION
WHEN NO_DATA_FOUND
THEN
NULL;
END;
END download_my_file;
The procedure works perfectly when a process calls the procedure directly from the database, however, I now have a requirement whereby this download facility needs to be accessed through a web-service: merely creating a web-service for the procedure and running it through a page process returns a 'ORA-06502: PL/SQL: numeric or value error' message. I assumed as APEX is a web environment that the htp package functions would use the session that APEX had started but obviously they are not.
How would I go about manually creating a session (I presume that's what's required) that would support the htp calls and allow the user to download the files exactly as they could with a direct call to the database procedure? I know it involves some initialization using the OWA package but this is alien territory for me, can anyone help at all?

Has anyone come across a similar scenario? There are plenty examples of calling web-enabled procedures directly from APEX but I must call such a procedure through a web-service reference. Failing anyone having a similar problem, could someone explain to me how the Common Gateway interface variables are set when an APEX application calls a web enabled procedure?
I've included the code for the procedure I'm trying to run which I have altered to include CGI environment parameters: I'm getting these parameters by calling owa_util.get_cgi_env in the calling APEX application and passing the individual values to the procedure through the web service reference. I chose those variables I thought would tell the procedure where to return the HTML to but I'm just getting a blank page.
Anyone any suggestions? (code below)
PROCEDURE download_my_file (
p_resid IN VARCHAR2
, p_filename VARCHAR2
, p_filter_str IN VARCHAR2 DEFAULT 'sepa_region = ''North'''
,p_SERVER_PORT VARCHAR2
,p_SERVER_NAME VARCHAR2
,p_QUERY_STRING VARCHAR2
,p_HTTP_USER_AGENT VARCHAR2
,p_HTTP_HOST VARCHAR2
,p_HTTP_REFERER VARCHAR2
,p_DAD_NAME VARCHAR2
,p_REQUEST_CHARSET VARCHAR2
,p_HTTP_COOKIE VARCHAR2
AS
v_mime VARCHAR2 (48) := NULL;
v_length NUMBER;
v_file_name VARCHAR2 (2000);
v_clob CLOB;
v_buf VARCHAR2 (32000);
v_amt NUMBER := 4000;
v_pos NUMBER := 1;
namelist OWA.vc_arr;
valuelist OWA.vc_arr;
htpbuffer HTP.htbuf_arr;
bufrows INTEGER := 99999999;
rc INTEGER;
BEGIN
IF p_filter_str IS NULL
THEN
SELECT EXTRACT (VALUE (r), '/*').getclobval ()
, DBMS_LOB.getlength (EXTRACT (VALUE (r), '/*').getclobval ())
INTO v_clob
, v_length
FROM TABLE (XMLSEQUENCE ((SELECT xdburitype (any_path).getxml ()
FROM resource_view
WHERE resid = p_resid))) r;
ELSE
v_clob:= repos_datasets.dyn_dset_licensed_location_xml(p_filter_str=>p_filter_str);
v_length:=DBMS_LOB.getlength (v_clob);
END IF;
namelist (1) := 'SERVER_PORT';
namelist (2) := 'SERVER_NAME';
namelist (3) := 'QUERY_STRING';
namelist (4) := 'HTTP_USER_AGENT';
namelist (5) := 'HTTP_HOST';
namelist (6) := 'HTTP_REFERER';
namelist (7) := 'DAD_NAME';
namelist (8) := 'REQUEST_CHARSET';
namelist (9) := 'HTTP_COOKIE';
valuelist (1) := p_SERVER_PORT;
valuelist (2) := p_SERVER_NAME;
valuelist (3) := p_QUERY_STRING;
valuelist (4) := p_HTTP_USER_AGENT;
valuelist (5) := p_HTTP_HOST;
valuelist (6) := p_HTTP_REFERER;
valuelist (7) := p_DAD_NAME;
valuelist (8) := p_REQUEST_CHARSET;
valuelist (9) := p_HTTP_COOKIE;
-- initiliase OWA and configure a basic CGI environment
DBMS_SESSION.reset_package; reset PL/SQL PGA maintaining package state
rc := OWA.initialize;
OWA.init_cgi_env (9
, namelist
, valuelist
htp.showpage ();
-- set up HTTP header
-- use an NVL around the mime type and
-- if it is a null set it to application/octect
-- application/octect may launch a download window from windows
OWA_UTIL.mime_header ('text/xml', FALSE);
HTP.p ('Content-length: ' || v_length);
HTP.p ('Content-Disposition: attachment; filename="' || NVL(p_filename,'user_query.xml') || '"');
OWA_UTIL.http_header_close;
owa_util.print_cgi_env;
--wpg_docload.download_file( v_clob );
BEGIN
v_pos := 1;
LOOP
DBMS_LOB.READ (v_clob
, v_amt
, v_pos
, v_buf
v_pos := v_pos + v_amt;
HTP.prn (v_buf);
END LOOP;
EXCEPTION
WHEN NO_DATA_FOUND
THEN
NULL;
END;
Message was edited by:
user592383

Mail Merge/ HTP question

Hi,
I'm trying to implement the Mail Merge utility that Scott Spendolini created. I had to make a few changes to my code to enable it handle large files. However, I now find that while it is correctly merging the document it is producing it with a name of "f" - no extension, no nothing.
<p>
My question is this: using the HTP package (to produce an RTF file) how do I specify the name of the file that is created?
<p>
Thank you in advance for your help.
<p>
David.

I've figured this out for myself now. I didn't know that I could use the following syntax:
<p>
htp.p('Content-Disposition: attachment; filename="FILENAME.rtf"');

HTP package

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